Kosmi is described as «free real time application and communication platform that offers voice, text and video calls along with games and applications such as SNES Party, NES Party, OpenArena, Poker, Virtual Cardtables, Synced YouTube and Cowatch Video» and is a Group Chat app in the social & communications category. There are more than 100 alternatives to Kosmi for a variety of platforms, including Windows, Linux, Mac, Android and iPhone. The best alternative is Signal, which is both free and Open Source. Other great apps like Kosmi are Element, Discord, Skype and Matrix.org.Kosmi alternatives are mainly Group Chat Apps but may also be Video Chat Apps or Video Calling Apps. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Kosmi.